Possible BGP hijack

Beginning at 2021-11-05 05:09:47 UTC, we detected a possible BGP hijack.

Prefix 170.10.140.0/24, is normally announced by AS397726 MIMECAST-US-PSC, US.

But beginning at 2021-11-05 05:09:47, the same prefix (170.10.140.0/24) was also announced by ASN 60492.

This was detected by 8 BGPMon peers.

Expected
Start time: 2021-11-05 05:09:47 UTC
Expected prefix: 170.10.140.0/24
Expected ASN: 397726 (MIMECAST-US-PSC, US)
Event Details
Detected advertisement: 170.10.140.0/24
Detected Origin ASN 60492 (MIMECAST-JE, GB)
Detected AS Path 48200 1273 2914 8680 60492
Detected by number of BGPMon peers: 8

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